SB2023031547 - Use-after-free in Linux kernel
Published: March 15, 2023
Security Bulletin ID
SB2023031547
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-26605)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the inode_cgwb_move_to_attached() function in fs/fs-writeback.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.